WebRoot/static/common/bootstrap-table/extensions/sticky-header/bootstrap-table-sticky-header.js

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/**
 * @author vincent loh <vincent.ml@gmail.com>
 * @version: v1.0.0
 * https://github.com/vinzloh/bootstrap-table/
 * Sticky header for bootstrap-table
 */

(function ($) {
    'use strict';

    var sprintf = $.fn.bootstrapTable.utils.sprintf;
    $.extend($.fn.bootstrapTable.defaults, {
        stickyHeader: false
    });

    var BootstrapTable = $.fn.bootstrapTable.Constructor,
        _initHeader = BootstrapTable.prototype.initHeader;

    BootstrapTable.prototype.initHeader = function () {
        var that = this;
        _initHeader.apply(this, Array.prototype.slice.apply(arguments));

        if (!this.options.stickyHeader) {
            return;
        }

        var table = this.$tableBody.find('table'),
            table_id = table.attr('id'),
            header_id = table.attr('id') + '-sticky-header',
            sticky_header_container_id = header_id +'-sticky-header-container',
            anchor_begin_id = header_id +'_sticky_anchor_begin',
            anchor_end_id = header_id +'_sticky_anchor_end';
        // add begin and end anchors to track table position

        table.before(sprintf('<div id="%s" class="hidden"></div>', sticky_header_container_id));
        table.before(sprintf('<div id="%s"></div>', anchor_begin_id));
        table.after(sprintf('<div id="%s"></div>', anchor_end_id));

        table.find('thead').attr('id', header_id);

        // clone header just once, to be used as sticky header
        // deep clone header. using source header affects tbody>td width
        this.$stickyHeader = $($('#'+header_id).clone(true, true));
        // avoid id conflict
        this.$stickyHeader.removeAttr('id');

        // render sticky on window scroll or resize
        $(window).on('resize.'+table_id, table, render_sticky_header);
        $(window).on('scroll.'+table_id, table, render_sticky_header);
        // render sticky when table scroll left-right
        table.closest('.fixed-table-container').find('.fixed-table-body').on('scroll.'+table_id, table, match_position_x);

        this.$el.on('all.bs.table', function (e) {
            that.$stickyHeader = $($('#'+header_id).clone(true, true));
            that.$stickyHeader.removeAttr('id');
        });

        function render_sticky_header(event) {
            var table = event.data;
            var table_header_id = table.find('thead').attr('id');